Give two characteristic of atmosphere?

1. The atmosphere is composed of various gases, with the most abundant being nitrogen (about 78%) and oxygen (about 21%). Other gases present in smaller amounts include carbon dioxide, argon, and water vapor.

2. The atmosphere plays a crucial role in regulating Earth's temperature by trapping heat from the sun and preventing it from escaping into space. This greenhouse effect helps maintain a stable climate and allows life to thrive on our planet.